Liang, Liang ; Feng, Quanchen ; Wang, Xingli ; Hübner, Jessica ; Gernert, Ulrich ; Heggen, Marc ; Wu, Longfei ; Hellmann, Tim ; Hofmann, Jan P. ; Strasser, Peter (2023)
Electroreduction of CO₂ on Au(310)@Cu High‐index Facets.
In: Angewandte Chemie International Edition, 2023, 62 (12)
doi: 10.26083/tuprints-00023703
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
The chemical selectivity and faradaic efficiency of high‐index Cu facets for the CO₂ reduction reaction (CO₂RR) is investigated. More specifically, shape‐controlled nanoparticles enclosed by Cu {hk0} facets are fabricated using Cu multilayer deposition at three distinct layer thicknesses on the surface facets of Au truncated ditetragonal nanoprisms (Au DTPs). Au DTPs are shapes enclosed by 12 high‐index {310} facets. Facet angle analysis confirms DTP geometry. Elemental mapping analysis shows Cu surface layers are uniformly distributed on the Au {310} facets of the DTPs. The 7 nm Au@Cu DTPs high‐index {hk0} facets exhibit a CH₄ : CO product ratio of almost 10 : 1 compared to a 1 : 1 ratio for the reference 7 nm Au@Cu nanoparticles (NPs). Operando Fourier transform infrared spectroscopy spectra disclose reactive adsorbed *CO as the main intermediate, whereas CO stripping experiments reveal the high‐index facets enhance the *CO formation followed by rapid desorption or hydrogenation.
| Typ des Eintrags: | Artikel | ||||
|---|---|---|---|---|---|
| Erschienen: | 2023 | ||||
| Autor(en): | Liang, Liang ; Feng, Quanchen ; Wang, Xingli ; Hübner, Jessica ; Gernert, Ulrich ; Heggen, Marc ; Wu, Longfei ; Hellmann, Tim ; Hofmann, Jan P. ; Strasser, Peter | ||||
| Art des Eintrags: | Zweitveröffentlichung | ||||
| Titel: | Electroreduction of CO₂ on Au(310)@Cu High‐index Facets | ||||
| Sprache: | Englisch | ||||
| Publikationsjahr: | 2023 | ||||
| Ort: | Darmstadt | ||||
| Publikationsdatum der Erstveröffentlichung: | 2023 | ||||
| Verlag: | Wiley-VCH | ||||
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Angewandte Chemie International Edition | ||||
| Jahrgang/Volume einer Zeitschrift: | 62 | ||||
| (Heft-)Nummer: | 12 | ||||
| Kollation: | 5 Seiten | ||||
| DOI: | 10.26083/tuprints-00023703 | ||||
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23703 | ||||
| Zugehörige Links: | |||||
| Herkunft: | Zweitveröffentlichung DeepGreen | ||||
| Kurzbeschreibung (Abstract): | The chemical selectivity and faradaic efficiency of high‐index Cu facets for the CO₂ reduction reaction (CO₂RR) is investigated. More specifically, shape‐controlled nanoparticles enclosed by Cu {hk0} facets are fabricated using Cu multilayer deposition at three distinct layer thicknesses on the surface facets of Au truncated ditetragonal nanoprisms (Au DTPs). Au DTPs are shapes enclosed by 12 high‐index {310} facets. Facet angle analysis confirms DTP geometry. Elemental mapping analysis shows Cu surface layers are uniformly distributed on the Au {310} facets of the DTPs. The 7 nm Au@Cu DTPs high‐index {hk0} facets exhibit a CH₄ : CO product ratio of almost 10 : 1 compared to a 1 : 1 ratio for the reference 7 nm Au@Cu nanoparticles (NPs). Operando Fourier transform infrared spectroscopy spectra disclose reactive adsorbed *CO as the main intermediate, whereas CO stripping experiments reveal the high‐index facets enhance the *CO formation followed by rapid desorption or hydrogenation. |
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| Alternatives oder übersetztes Abstract: |
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| Freie Schlagworte: | Electromethanation, High-Index Cu Facets, Operando Fourier Transform Infrared Spectroscopy | ||||
| Status: | Verlagsversion | ||||
| URN: | urn:nbn:de:tuda-tuprints-237032 | ||||
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
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| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung |
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| Hinterlegungsdatum: | 26 Mai 2023 12:00 | ||||
| Letzte Änderung: | 30 Mai 2023 05:15 | ||||
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| Suche nach Titel in: | TUfind oder in Google | ||||
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